Differences are marked in red
B450M MORTAR MAX B450M MORTAR MAX B450 GAMING PLUS MAX B450 GAMING PLUS MAX B450-A PRO MAX B450-A PRO MAX B450 TOMAHAWK MAX B450 TOMAHAWK MAX
Socket AM4 AM4 AM4 AM4
CPU (Max Support) RYZEN 9 Ryzen RYZEN 9 RYZEN 9
Chipset AMD® B450 Chipset AMD® B450 Chipset AMD® B450 Chipset AMD® B450 Chipset
DDR4 Memory 1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
For AMD Ryzen Gen3 (R5/R7/R9)
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz (by A-XMP OC MODE)
For AMD Other CPU
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)
1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
For AMD Ryzen Gen3 (R5/R7/R9)
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 4000/ 4133 MHz (by A-XMP OC MODE)
For AMD Other CPU
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)
1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
For AMD Ryzen Gen3 (R5/R7/R9)
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466/ 3733/ 3866/ 4000/ 4133 MHz (by A-XMP OC MODE)
For AMD Other CPU
2667/ 2800/ 2933/ 3000/ 3066/ 3200/ 3466 MHz (by A-XMP OC MODE)
1866/ 2133/ 2400/ 2667Mhz (by JEDEC)
For AMD Ryzen Gen3 (R5/R7/R9)
2667/2800/2933/3000/3066/3200/3466/3600/3733/3866/4000/4133 by A-XMP OC mode
For AMD Other CPU
2667/2800/2933/3000/3066/3200/3466 by A-XMP OC mode
Memory Channel Dual Dual Dual Dual
DIMM Slots 4 4 4 4
Max Memory (GB) 64 64 64 64
PCI-E x16 2 2 2 2
PCI-E Gen Gen3(PCI_E1), Gen2(PCI_E4) Gen3(PCI_E1), Gen2(PCI_E4) Gen3(PCI_E1), Gen2(PCI_E4) Gen3(PCI_E1), Gen2(PCI_E4)
PCI-E x1 1 4 4 3
SATAIII 4 6 6 6
M.2 Slot 2 1 1 1
RAID 0/1/10 0/1/10 0/1/10 0/1/10
TPM (header) 1 1 1 1
LAN 1x Realtek® RTL8111H-CG 1x Realtek® 8111H 1x Realtek® 8111H 1x Realtek® 8111H Gigabit LAN controller
USB 3.2 ports (Front) 2(Gen1, Type A) 2(Gen1, Type A) 2(Gen1, Type A) 2(Gen1, Type A)
USB 3.2 ports (Rear) 1(Gen2, Type C), 1(Gen2, Type A), 4(Gen1, Type A) 2(Gen2, Type A), 2(Gen1, Type A) 2(Gen2, Type A), 2(Gen1, Type A) 1(Gen2, Type C), 1(Gen2, Type A), 2(Gen1, Type A)
USB 2.0 ports (Front) 4 4 4 4
USB 2.0 ports (Rear) 2 2 2 2
Serial ports(Front) 1 1 1 1
Parallel Port(Front) 1 N/A N/A N/A
Audio ports (Rear) Realtek® ALC892 Codec Realtek® ALC892 Codec Realtek® ALC892 Codec Realtek® ALC892 Codec
DisplayPort 1 N/A N/A N/A
DVI-D N/A 1 1 1
VGA N/A N/A 1 N/A
HDMI 1 1 1 1
DirectX 12 12 12 12
Form Factor Micro ATX ATX ATX ATX
CrossFire Y Y Y Y
Operating System Support for Windows® 10 64-bit
Support for Windows® 7 64-bit
* To support Windows® 7 64-bit, you must install an AMD Pinnacle Ridge & Summit Ridge CPU.
Support for Windows® 10 64-bit
Support for Windows® 7 64-bit
* To support Windows® 7 64-bit, you must install an AMD Pinnacle Ridge & Summit Ridge CPU.
Support for Windows® 10 64-bit
Support for Windows® 7 64-bit
* To support Windows® 7 64-bit, you must install an AMD Pinnacle Ridge & Summit Ridge CPU.
Support for Windows® 10 64-bit
Support for Windows® 7 64-bit
* To support Windows® 7 64-bit, you must install an AMD Pinnacle Ridge & Summit Ridge CPU.
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